TranslationLanguageRenderer.php in Display Suite 8.3

Namespace

Drupal\ds\Plugin\views\Entity\Render

File

src/Plugin/views/Entity/Render/TranslationLanguageRenderer.php

<?php

namespace Drupal\ds\Plugin\views\Entity\Render;

use Drupal\views\Plugin\views\query\QueryPluginBase;
use Drupal\views\ResultRow;

/**
 * Renders entity translations in their row language.
 */
class TranslationLanguageRenderer extends DefaultLanguageRenderer {

  /**
   * Stores the field alias of the langcode column.
   *
   * @var string
   */
  protected $langcodeAlias;

  /**
   * {@inheritdoc}
   */
  public function query(QueryPluginBase $query, $relationship = NULL) {

    // There is no point in getting the language, in case the site is not
    // multilingual.
    if (!$this->languageManager
      ->isMultilingual()) {
      return;
    }

    // If the data table is defined, we use the translation language as render
    // language, otherwise we fall back to the default entity language, which is
    // stored in the revision table for revisionable entity types.
    $langcode_key = $this->entityType
      ->getKey('langcode');
    foreach ([
      'data_table',
      'revision_table',
      'base_table',
    ] as $key) {
      if ($table = $this->entityType
        ->get($key)) {
        $table_alias = $query
          ->ensureTable($table);
        $this->langcodeAlias = $query
          ->addField($table_alias, $langcode_key);
        break;
      }
    }
  }

  /**
   * {@inheritdoc}
   */
  public function preRender(array $result) {
    parent::dsPreRender($result, TRUE);
  }

  /**
   * {@inheritdoc}
   */
  public function render(ResultRow $row) {
    $entity_id = $row->_entity
      ->id();
    $langcode = $this
      ->getLangcode($row);
    if (isset($this->build[$entity_id][$langcode])) {
      $build = $this->build[$entity_id][$langcode];
      $this
        ->alterBuild($build, $row);
      return $build;
    }
    return [];
  }

  /**
   * {@inheritdoc}
   */
  public function getLangcode(ResultRow $row) {
    return isset($row->{$this->langcodeAlias}) ? $row->{$this->langcodeAlias} : $this->languageManager
      ->getDefaultLanguage()
      ->getId();
  }

}

Classes

Name	Description
TranslationLanguageRenderer	Renders entity translations in their row language.